Can resolve correct IP , but recieve Page not Found for specific site

All over our network we are recieving page not found for a www.cdc.gov. The site is up and can be conntected to from a station outside of our lan. Our dns server is resolving the correct ip. I have tried other sites in the same top level domain and have no troubles with them. I have tried connecting to pages other then index to no avail. I have also confirmed we are not blocking the address via access-list. Out of desparity I've cleared the dns cache on our server and also deleted all cookies on workstations , still not connecting.

I've noticed this site forwards to akamai. I am leaning towards this being the problem. I go akamai.com and connect but after surfing it a bit notice that some gif images are missing. From a workstation outside of the lan those gifs are present. Any suggestions on how to fix or ideas on what might be causing this would be greatly appreciated. Thanks.

Tried Jammy's suggestion with the same result. The tracert times out at certain points from both outside lan, in lan and from dnsstuff.com at differant hops. I understand this to be normal to block tracert at specific points? Any suggestions tracert or other ideas on cause much appreciated.

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I talked to admin and he helped me determine it was a dns issue. I am awarding half the points to Jammy (thanks much) and would like to award the other half to anyone that can explain this to me.

The admin gave me another ip address that worked. Cleared the cache on workstation and server again and after that the name resolved to the correct ip. What I am curious about is how a pc outside of our lan worked while resolving to the same ip address that did not work from inside our lan? I am guessing this has something to do with cached pages and somehow akamai figures into this. Any ideas?

WAs it put in LAN Settings screen? If that is the case then he gave you a Proxy server to enter which does the requesting on behalf of the client. If it is a proxy server then a network administrator typically blocks any other way out of the network except through it. If you dont have that IP/information in your browser then you are stuck.

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